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First things first, you always disconnect your ground when messing with anything electrical on your truck. That's a 10mm socket on the black wire on your battery.

I disconnected the entire plug wire from the coil pack to the metal sleeve. its not easy but with patience it will wiggle out. Do not pull the plug wire to remove. You will probably break it and have to replace the full set to get one. Do not remove all of the plug wires at once. Replace each wire/plug one at a time so you don't lose track of where everything goes.

Remove the old plug.

Inspect.

Put a literal drop worth of antiseize on the threaded part of the plug. be very sparring with application. A little is almost too much.

Antiseize is needed because its an aluminum block. steel + aluminum = stuck plug down the road.

Replace the plug and be sure to seat the boots properly. You'll hear them click. I used the marks in the dust to see when they were fully seated on the coil packs.

Here's pics of plug locations.
Pass side.

Rear pass side.

Driver side.

This is the hard plug. He doesn't like you, so he hides.

All the plugs are easy to get to except the driver side front(close to the alternator). You have to remove and replace it through the wheel well. Dont cut yourself. Its easy to do. I didn't take a pic of the plug through the wheelwell cause it won't line up. Your hand barely fits. Totally messed up angle.